Cutter knife



1. Cutter knife

1.1 is a top, front, and left side perspective of a cutter knife showing my new design;

1.2 is a top, front, and left side perspective view thereof, wherein the blade is slid out;

1.3 is a bottom, front, and left side perspective view thereof;

1.4 is a front elevation view thereof;

1.5 is a top plan view thereof;

1.6 is a bottom plan view thereof;

1.7 is a left side elevation view thereof; and

1.8 is a right side elevation view thereof. 

CLAIM The ornamental design for a cutter knife, as shown and described. 